[pve-devel] [PATCH container v3] api: record CT ID as used after a container is destroyed

[Aaron Lauterer]

beside one small nit that could be cleaned up in a follow-up,

consider this:

Tested-By: Aaron Lauterer <a.lauterer at proxmox.com>
Reviewed-By: Aaron Lauterer <a.lauterer at proxmox.com>


On  2024-11-05  03:00, Severen Redwood wrote:
> After a container is destroyed, record that its ID has been used via the
> `PVE::UsedVmidList` module so that the `/cluster/nextids` endpoint can
> later optionally avoid suggesting previously used IDs.
> 
> Co-authored-by: Daniel Krambrock <krambrock at hrz.uni-marburg.de>
> Signed-off-by: Severen Redwood <severen.redwood at sitehost.co.nz>
> ---
> Changed since v2 is the addition of the use statement for `PVE::UsedVmidList`.
> 
>   src/PVE/API2/LXC.pm | 5 ++++-
>   1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/src/PVE/API2/LXC.pm b/src/PVE/API2/LXC.pm
> index 213e518..cc47c5c 100644
> --- a/src/PVE/API2/LXC.pm
> +++ b/src/PVE/API2/LXC.pm
> @@ -28,6 +28,7 @@ use PVE::API2::LXC::Config;
>   use PVE::API2::LXC::Status;
>   use PVE::API2::LXC::Snapshot;
>   use PVE::JSONSchema qw(get_standard_option);
> +use PVE::UsedVmidList qw(add_vmid);

adding the `qw(add_vmid)` here is not strictly necessary, AFAIU. We call 
the function with the full PVE::UsedVmidList:: prefix anyway.

>   use base qw(PVE::RESTHandler);
>   
>   BEGIN {
> @@ -794,7 +795,9 @@ __PACKAGE__->register_method({
>   		}
>   	    }
>   
> -	    # only now remove the zombie config, else we can have reuse race
> +	    # only now mark the CT ID as previously used and remove the zombie
> +	    # config, else we can have reuse race
> +	    PVE::UsedVmidList::add_vmid($vmid);
>   	    PVE::LXC::Config->destroy_config($vmid);
>   	};
>